#include<stdio.h>
void exchange(int*a,int*b)
{
	int temp;
	temp=*a;
	*a=*b;
	*b=temp;
}
int main()
{
	int n1,n2;
	printf("\nPleaseinput2 intgers:"); 
	scanf("%d%d",&n1,&n2);
	exchange(&n1,&n2);
	printf("\nn1=%d n2=%d\n",n1,n2);
	return 0;
}
